Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information costs » information contents, information centers, information content
technologien als » technologien des, technologien fur, technologien und
developing aside » developing asia, developing asian, developing asia's
als information » als informations, aids information, laws information
4.2 developing » 2.2 developing, 3.2 developing, 4.1 developing
das personal » des personal, des personals, haus personal
aside areas » marine areas, alpine areas, saline areas
costs das » costs case, costs cash, costs data

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologien als information costs das personal communication costs 4.2 developing aside areas.*.